Pioneer a 88 x service manual

Page 1

(U) PIONEEIT

Scfiicc
Wanna]

CIRCUIT DESCRIPTIONS

REPAIR & ADJUSTMENTS ORDER NO-
ARP-688-0
STEREO AMPLIFIER
A - 8 8 X
MODEL A-88X COMES IN SIX VERSIONS DISTINGUISHED AS FOLLOWS:
Type Voltage Remarks Black SiIvur
KU Ac12ov only U,s.A. moueI O -
HE Ac220v, 240v Iswnchable) European continent modeI O 0
HB Ac22ov,240v (switchabIe) United Kingdom model 0 -
s AC110V,120V,220V,240V (switchable) General export model 0 -
SIG A01 10v, 120v, 220v, 240v (switchabIeI U.s. MiIitary model _ O -
HEZ Aczzov, 240v (switchable) West Germany modeI O O

0 This service manual is applicable to the KU type.

For servicing of the HE, HB, S, S/G, HEZ types, please refer to the additionaI service manual.
0 Ce manuel dinstruction se refére au mode de réglage, en frangais.
o Este manual de servicio trata del método de ajuste escrito en espafiol.

CONTENTS

1. SPECIFICATIONS ..................... 2 7. P.C. BOARDS CONNECTION DIAGRAM .. . ., 15
2. FRONT PANEL FACILITIES ............. 3 8 SCHEMATIC DIAGRAM ................ 23
3 PARTS LOCATION .................... 5 9, ELECTRICAL PARTS LIST .............. 27
4. BLOCK DIAGRAM .................... 7 10. PACKING ........................... 31
5. EXPLODED VIEW AND PARTS LIST ....... 9 11 SAFETY INFORMATION ................ 32
6 ADJUSTMENT ....................... I4

REGLAGE .......................... 14

AJUSTE ............................ 14

PIONEER ELECTRONIC CORPORATION 4.1, Meguro «rename Megmeku. Tokyo 153, Japan
PIONEER ELECTRONICS [USA] INC. PD, Box 1750. Long Beach Canfornla 90801 LISA
TEL: [800} .421 44:14, [BOD] 237-0424
PIONEEfiI ELECTnONIC [EUROPE] N.v. Keemengxaan 1. 2740 Beveren, Beglurn TEL: 03/7752808
PIONEER ELECTRONICS AUSTRALIA FITv. LTD. I 78484 BouNdaIy poem Br'aesxde. Venom 3195, Australia
TEL; [(33] BBB-£3811

YA©FEB.1985 PrimeI in Japan